The last post from Kylie, an adorable snap of newborn Stormi clutching her finger, has now become the most liked picture on Instagram.

After it was previously reported Kylie was determined not to hire outside help for looking after Stormi, an insider has revealed the new mum's had a change of heart.

A source told Us Weekly that after finding motherhood 'overwhelming' Kylie has hired a baby nurse and is also relying on mum Kris Jenner.

Kylie was never going to choose something simple (Image: YouTube)

"Kris has been spending a lot of time at Kylie's house since she came home with Stormi," said the insider.

"Kylie has been a natural at being a mother. However, it has been overwhelming, and Kylie has relied on Kris during these first days at home with Storm," they added.

Stormi Webster has taken her daddy's surname (Image: Getty)

Kylie's selfies come a week after she announced to the world her daughter's full name, Stormi Webster, via her Instagram account.

Fans were convinced the name would be something Butterfly related - given Kylie and Travis ' obsession with the winged insect.

Rumours were rife the new parents would name their firstborn Butterfly - or Mariposa, Spanish for butterfly - after the matching tattoos they share.

Then Kylie appeared to be dropping hints by decorating her nursery with butterfly images, receiving floral tributes in the shape of the animal and wearing a butterfly adorned necklace in her pregnancy announcement video.

But according to fan theory - the name Stormi DOES have a butterfly meaning behind it afterall.

Kylie shows off her butterfly chain necklace (Image: Youtube)

She even decorated the nursery walls with the theme (Image: Youtube)

The pair have a special connection to butterflys (Image: YouTube)

The Butterfly Effect is the name of one of Travis Scott 's biggest songs - and it's also the name for the theory where one small incident leads to a huge outcome.

Or if a butterfly flutters its wings a storm is caused on the other side of the planet.

Kris and Kylie at the baby scan (Image: YouTube)

The star announced her baby news in a documentary (Image: YouTube)

One sleuth Twitter user revealed how they cracked the code: "The saying goes if a butterfly flaps its wings in one part of the world it creates a ripple and a storm happens in another part of the world…. Travis Scott made song called butterfly effect 9 months ago, 9 months later guess who pops out? STORMI BITCHES I CRACKED THE CODE."

"It’s a play on the butterfly effect- a butterfly’s wings can cause a storm around the world," said another.

So that explains it.

As is rapidly becoming Kardashian tradition, little Stormi was given her father's surname even though her parents aren't married.

Kim and Kanye named their daughter North West, while Kourtney and Scott Disick bestowed his surname upon all three of their children.

Only Rob's daughter Dream has the Kardashian surname - and it's not known yet which moniker pregnant Khloe will give to her unborn child with Tristan Thompson.